If you have a separate password for your sim card, it will be harder for someone to use it in another device.If you need to switch phones, what should you do?There is only one way to get a PUK from your mobile provider.You will need to prove your identity to get this code.You can learn how to use a PUK to gain access to your phone.
Step 1: You need to enter your code.
When you get a new phone, you will be asked to enter a password if you locked your sim card.If you know the password, enter it.You can get a PUK from your mobile provider if you don't already have one.The default unlock code for T-Mobile is, while for AT&T it's.Try the default code first if you don't know the PIN.You'll be prompted to enter the PUK after entering the code too many times.
Step 2: You have to get the PUK for your phone.
You will need to contact your mobile provider to get this code.Before contacting your provider by phone, you should write down the number on the sim card.If your phone isn't working, you'll have to use a different phone to call customer service.AT&T is one of the providers that allows you to get the PUK online.If you have an AT&T account, you can sign in to your account to get your PUK.Under "My devices & add-ons," select your locked phone.Click if you want to.Click.
Step 3: The PUK can be entered when prompted.
The PUK is long.If you can't enter the correct PUK after 10 attempts, you'll need to get a new one from your provider.You will be prompted to create a new pin after you successfully enter the code.
Step 4: A new PIN can be created.
If you want to change the PIN, you'll have to create a new one.If you lose your PIN, write it down so you have it.
Step 5: If you don't want to, disabling sim locking is optional.
If you don't want to use a sim in the future, you can use the app to turn it off.To turn it off, you'll need to enter your new PIN once.To turn off the switch in the app, tap (or, or similar), select or tap.To confirm the change, you'll need to enter your current phone number.